Salt Water and Sunfish

And disconnect the goose neck from the lower boom. Mine sat from 1973 to 2011 with these two parts still bolted together. Dissimilar metals in a salty environment led to the boom cracking at the point where the goose neck was attached. When you rinse down the hardware, loosen the goose neck so the fresh water can wash away all of the salt that is in that tight confine.

I rebuilt the boom with a heavy piece of Schedule 80 PVC pipe epoxied into the broken pieces of the boom, and wrapped the wound in stainless steel sheet metal with stainless pipe clamps to hold the whole thing together. That break is now the strongest part of the vessel.

BTW, any vessel will float higher in the denser salt water than in fresh water. I doubt if you could tell on a vessel as small as Sailfish without a US Navy level lab at hand, but it is often a more refreshing spray as you skim over the big rollers.
 
Roccaas is on the money with the gooseneck & boom, it's called galvanic corrosion. To help prevent this some people insulate the boom from the gooseneck with electrical tape.
 

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